There is much to be contrasted between the cultures of the Harappans and the Aryans. There are indeed a few points of similarities, but they are not of any significance. Why the points of contrast are more is primarily because of geographic location, economic activity and the religious practices followed by both the cultures. Far more important is the fact that the Aryans, with a plasticity of mind, made life vibrant; whereas, the Indus life looks more like stylized puppet show.
The plasticity of the Aryan mind was shown in the language as well as the way in which they adapted agricultural and settled life. The seals of the Indus Valley show that the pictographs remained statis, whereas, the Aryan language in the Rig Veda at places rises to musical levels. The success with which the Aryan writings were composed reveals the ability of the Aryan mind to grasp the mulitiple dimensions of human life. And language which exhibits immense potentialities in its vocabulary reveals that the community is full of potentialities. On the other hand, out of nearly 400 characters known to the Harappans only a few were repeated time and again.
The other manifestation of Aryan civilization, that is, its capacity to change and adapt itself, has given a continuity to Indian Civilization despite the absence of mighty empires. On the other hand, the Indus Valley people reached a blind alley and the never learnt anything from other civilizations like the Sumerian. Adaptability or ability to respond to challenges is the hallmark of any youthful civilization. The Indus civilization reached its senilithy by 2000 B.C. whereas the Aryan Civilization was full with creative dynamism.
Archaeology is the only source of our knowledge of the Harappan civilization, but information concerning the Vedic Aryans depends almost entirely on literary texts, which were handed down by the oral tradition. It is clear from the material remains that the Harappan civilization was